Preheat oven to 400 degrees. Lightly spray 2 four inch diameter hamburger bun molds. If do not have molds check out my article on "How to make foil rings"
In a larger mixing bowl sift or whisk the dry ingredients together until fully combined and no lumps are in the dry ingredients
Add the butter or coconut oil and the water. Whisk until fully combined and a smooth dough has formed
Press dough into smooth ball. Massage the dough in hands for about 1 minute or until smooth and moist but not sticky. Press dough back into a smooth ball. Allow to sit about 10 minutes to absorb extra moisture
Massage the dough a few seconds in hands to make sure that everything is binding together, The dough should be moist but not stick to hands
Divide the dough into 2 equal portions. Roll each portion into a smooth ball. Press down slightly on the top to shape each ball into a disc. Make sure to keep the top in a dome shape our you will have flat buns
Place into prepared molds. Bake at 400 degrees for about 20 minutes or until lightly golden and a tester comes out clean
Remove from oven. The buns will still be soft but will firm up as they cool. Allow to cool in the molds about 10 minutes or until firm enough to remove from the molds without falling apart.
Transfer to a wire rack and allow to cool completely before slicing in half horizontally. Once completely cooled slice in half and top with desire filling